diff options
Diffstat (limited to 'com32/lib/strreplace.c')
-rw-r--r-- | com32/lib/strreplace.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/com32/lib/strreplace.c b/com32/lib/strreplace.c new file mode 100644 index 00000000..d59efe0e --- /dev/null +++ b/com32/lib/strreplace.c @@ -0,0 +1,58 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2011 Erwan Velu - All Rights Reserved + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall + * be included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * ----------------------------------------------------------------------- + */ + +#include <string.h> +#include <stdlib.h> + +char *strreplace(const char *string, const char *string_to_replace, + const char *string_to_insert) +{ + char *token = NULL; + char *out = NULL; + + size_t slen, srlen, silen; + + token = strstr(string, string_to_replace); + if (!token) + return strdup(string); + + slen = strlen(string); + srlen = strlen(string_to_replace); + silen = strlen(string_to_insert); + + out = malloc(slen - srlen + silen + 1); + if (!out) + return NULL; + + memcpy(out, string, token - string); + memcpy(out + (token - string), string_to_insert, silen); + memcpy(out + (token - string) + silen, token + srlen, + slen - srlen - (token - string) + 1); + + return out; +} |